Philips DVP520/00 Service Manual page 23

1 2
DVP520 FRONT BOARD
FROM MAIN BOARD
A CN303
CON10(2.0)
Stuff
Without Karaoke
CN304(1-4)
CN304
With Karaoke
CN304(1-8)
CON8(2.0)
B
R313
-24V -24VV
0 ZD301
C315 C314
0.1u 22uF/50V
24V(OPEN)
C
C303
DV33
R317 100
REM301 0.1u C304
47uF
3
VCC
2
GND
IR
1
IR
+
REM
D
R206 0(OPEN) C205
MICIN +12V/MICIN 47uF
U302A
C200
MIC200 R202 10K 4558
1 3
1
+
1
2 R200 2
2 -
2.2K 0.1u R201
47K
3
3
R204
36K
C204 100p
R203
1.2K -12V/MIC1
E
C203 C202
0.1u
C201 47uF
22uF
When have no karaoke, this inside of circle a piece is OPEN
F
1 2
6-3
3 4
GND
10
DV33
9
DATA
8
CLK
7
CS
6
IR
5
LED-
4
POWER-K
3
VCC
2
1
GND
1
-24V
2
F+
3
F-
4
+12v/MICIN
F-
5
-12v/MIC1
6
AGND
7
MIC
8
0.1u
C307 C306 C305
47uF 0.1u 0.1u
VCC 5V
R327 33
+
R304
R303 R305
10K
10K 10K
CS R300 100
CLK R301 100
DATA
R302 100
C302 C301 C300
100p 100p 100p
-12V/MIC1
C206
R205
0.1u
0(OPEN)
MIC1
RP200 MIC
10K
CN302
K301
4
4
3
2
D302
1
1
SWITCH BOARD
Without VFD,Without LED
With LED,Without VFD
3 4
5 6
VFD VFD-54
F+
-24VV
C308
34 22
G4 SEG8
PT6312
35 21
G3 SEG7
36 20
G2 SEG6/K6
37 U301 19
G1 SEG5/K5
38 18
VDD SEG4/K4
39 17
LED4 SEG3/K3
R306
40 16
LED3 SEG2/K2
41 15
LED2 SEG1/K1
51K
42 14
LED1 VDD 5VV
43 13 D301
GND KEY4
1N4148
44 12
OSC KEY3
C309 K302
1000p(OPEN)
PLAY/PAUSE
K303
OPEN/CLOSE
K304
STOP
POWER
POWER-K
1
GND
2
LED-
3
LED+ DV33
4
CN301 R312 470
CON4(2.0)
OPEN Stuff
D302
CN302(3-4)
CN302(1-4),D302
5 6
6-3
7 8
R307 10K
R308 10K
R309 10K
R310 10K
7 8
C200 E1
C202 E2
C203 E2
C204 E2
C205 D2
C206 D2
C300 C4
A
C301 C4
C302 C4
C303 C2
C304 C2
C305 C4
C306 C4
C307 C4
C308 B4
C309 C5
C314 C2
C315 C2
CN301 E5
B
CN302 E4
CN303 A2
CN304 B2
D301 C6
D302 E4
K301 E4
K302 C6
K303 C6
K304 C6
MIC200 E1
R200 E1
R201 E2
C
R202 E2
R203 E2
R204 E2
R300 C4
R301 C4
R302 C4
R303 C4
R304 C4
R305 C4
R306 C4
R307 C7
R308 C7
D
R309 D7
R310 D7
R312 E6
R313 C2
R317 C2
R327 C3
REM301 C1
RP200 E3
U301 B5
U302 E2
VFD B5
ZD301 C2
E
F